public function testProcessNonexistentUser()
{
$user = $this->getMockUser();
$mail = new CM_Mail_ExampleMailable($user);
$site = CM_Site_Abstract::factory();
$render = new CM_Frontend_Render(new CM_Frontend_Environment($site));
$request = new CM_Http_Request_Get($render->getUrlEmailTracking($mail), ['host' => $site->getHost()]);
$response = CM_Http_Response_EmailTracking::createFromRequest($request, $site, $this->getServiceManager());
$user->delete();
try {
$response->process();
$this->fail('Expected exception not thrown');
} catch (CM_Exception_Nonexistent $e) {
$this->assertSame(CM_Exception::WARN, $e->getSeverity());
}
}